Test with stuff + Forestry potential support

BM_src/forestry/api/mail/ITradeStation.java

@@ -0,0 +1,19 @@
+package forestry.api.mail;
+
+import net.minecraft.inventory.IInventory;
+
+public interface ITradeStation extends ILetterHandler, IInventory {
+
+	String getMoniker();
+
+	boolean isValid();
+
+	void invalidate();
+
+	void setVirtual(boolean isVirtual);
+
+	boolean isVirtual();
+
+	TradeStationInfo getTradeInfo();
+
+}